php filter all HTML tags_PHP tutorial

The article provides you with two PHP methods to filter all HTML tags. It can filter all HTML tags. ​

The article provides you with two php tutorials to filter all html tags. It can filter all html tags.

//Remove html tags

function text2html($txt){
          $txt = str_replace(" ","　",$txt);
          $txt = str_replace("<","<",$txt);
          $txt = str_replace(">",">",$txt);
          $txt = preg_replace("/[ ]{1,}/isu","
",$txt);
         return $txt;
}

//Clear html tag

function clearhtml($str){
           $str = str_replace('<','<',$str);
$str = str_replace('>','>',$str);
         return $str;
}